Physical Science MCQ Questions Answers Objective Sample Practice Set

11) Which unit we use to express Nuclear sizes ?

a)Tesla

b)Newton

c)Fermi

d)None of above

View Answer
Option – c)

12) Who discovered Diode Bulb ?

a)Henry Becquerel

b)Sir J.S. Fleming

c)Lee De Forest

d)Archemedes

View Answer
Option – b)

13) Device used to measure potential difference between two points in a circuit is ?

a) Ammeter

b) Galvanometer

c) Voltmeter

d) None of above

View Answer
Option – c)

14) Who discovered Atom ?

a)Madam Curie

b)James Chadwick

c)Rutherford

d)John Dalton

View Answer
Option – d)

15) Of the following properties of a wave, the one that is independent of the other is its

a) amplitude

b) velocity

c) wavelength

d) frequency

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Option – a)

16) Light travels at the fastest speed in

a) glass

b) water

c) hydrogen

d) vacuum

View Answer
Option – d)

17)One should not connect a number of electrical appliances to the same power socket because

a) this can damage the appliances due to overloading

b) this can damage the domestic wiring due to overloading

c) this can damage the electrical meter

d) the appliance will not get full voltage

View Answer
Option – b)

18) It is more difficult to walk on a sandy road than on a concrete road because

a) sand is soft and concreter is hard

b) the friction between sand and feet is less than that between concrete and feet

c) the friction between sand and feet is more than that between concrete and feet

d) the sand is grainy but concrete is smooth

View Answer
Option – b)

19) Natural radioactivity was discovered by

a) Marie Curie

b) Ernest Rutherfor

c) Henri Becquerel

d) Enrico Fermi

View Answer
Option – c)

20) Mirage is due to

a) unequal heating of different parts of the atmosphere

b) magnetic disturbances in the atmosphere

c) depletion of ozone layer in the atmosphere

d) equal heating of different parts of the atmosphere

View Answer
Option – a)